Austin Air HEALTHMATE Plus JR. A250A1, HM250, Sandstone Designed for people living in smaller spaces and specializes in the reduction of harmful chemicals, noxious gases, VOCs, formaldehyde, and sub micron particles for individuals in the most contaminated of settings Broad spectrum adsorption offers protection for people exposed to smoke from wildfires, those living close to busy highways, and people with sensitivity to certain chemicals and gases found in the home True medical grade HEPA filter removes 99.97% of all particles larger than 0.3 microns; over 270 cubic inches of activated carbon impregnated with potassium iodide and zeolite filtration removes odors, gases and chemicals including formaldehyde and benzene 3 speed settings for fan; 360 degree intake system draws air into all sides of unit, passing air through a 4 stage filter Eases headaches and reduces nausea related to chemical exposure; helps reduce coughing, wheezing and sneezing, dry mouth, runny nose; reduces night time allergies and asthma attacks, snoring, and helps you sleep better; strengthens the immune system